The LM140K-5.0P+ is a three-terminal positive voltage regulator that provides a fixed +5V output. It's manufactured by National Semiconductor (now Texas Instruments). The 'P+' designation often indicates a specific package or performance grade. These regulators are commonly used to supply a stable voltage for various electronic circuits.

Applications

• Logic circuits power supplies
• Microcontroller power supplies
• Instrumentation power supplies
• General purpose voltage regulation
• Battery charging circuits

Features

• +5V fixed output voltage
• Output current up to 1A
• Internal thermal overload protection
• Short-circuit current limiting
• Output transistor safe-area compensation
• High input voltage capability

Benefits

• Provides a stable and reliable +5V supply
• Protects against overheating and short circuits
• Simplifies power supply design
• Reduces the need for external components
• Enhances system reliability

Additional Details

The LM140K-5.0P+ delivers a regulated +5V output with a maximum output current of 1A. It includes thermal overload protection, which shuts down the regulator if it overheats, preventing damage. The short-circuit current limiting safeguards the regulator and connected components from excessive current during a short circuit. Output transistor safe-area compensation contributes to stable operation across varying input voltages and output currents. The regulator's high input voltage capability allows it to operate from a wide range of input sources. It is used extensively where a stable +5V supply is required such as TTL and CMOS logic and other embedded systems.

This voltage regulator greatly simplifies power supply design by integrating necessary protection features and providing a fixed output voltage, reducing the number of external components required. It is easy to use and increases overall system reliability by ensuring a stable voltage supply. The +5V regulation ensures components operate within their specified tolerances.